From d0bab301a0462ae46f65fea0af01b938d709aba7 Mon Sep 17 00:00:00 2001 From: Roy Pledge Date: Fri, 24 Apr 2020 14:51:12 +0300 Subject: [PATCH] soc: fsl: dpio: Prefer the CPU affine DPIO Use the cpu affine DPIO unless there isn't one which can happen if less DPIOs than cores are assign to the kernel. Signed-off-by: Roy Pledge Signed-off-by: Ioana Ciornei Signed-off-by: Li Yang --- drivers/soc/fsl/dpio/dpio-service.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/soc/fsl/dpio/dpio-service.c b/drivers/soc/fsl/dpio/dpio-service.c index cd4f641..f1080c7 100644 --- a/drivers/soc/fsl/dpio/dpio-service.c +++ b/drivers/soc/fsl/dpio/dpio-service.c @@ -58,7 +58,7 @@ static inline struct dpaa2_io *service_select_by_cpu(struct dpaa2_io *d, * If cpu == -1, choose the current cpu, with no guarantees about * potentially being migrated away. */ - if (unlikely(cpu < 0)) + if (cpu < 0) cpu = smp_processor_id(); /* If a specific cpu was requested, pick it up immediately */ @@ -70,6 +70,10 @@ static inline struct dpaa2_io *service_select(struct dpaa2_io *d) if (d) return d; + d = service_select_by_cpu(d, -1); + if (d) + return d; + spin_lock(&dpio_list_lock); d = list_entry(dpio_list.next, struct dpaa2_io, node); list_del(&d->node); -- 2.7.4